Shuttle



J. C. SHAMBOW.

SHUTTLE.

APPLICATION FILED NOV. I5, 1918.

1340,5658, v V Patented May 18, 1920.

lNvENTnR.

ATTORNEY.

XITED STATES PATENT ()ltlFICE.

JOHN C. SHAMBOW, OF WOONSOCKET, RHODE ISLAND, ASSIGNOR TO SHAMBOW SHUTTLE COMPANY, OF WOONSOCKET, RHODE ISLAND, A COPABTNERSHIP.

SHUTTLE.

Application filed November 15, 1918.

useful improvements in shuttles and pertains more particularly to an lmprovedmeans for preventing unthreading of the shuttle.

The primary object of the invention is to provide a simple and improved form of means which can be easily produced and secured in position in the shuttle, and which will effectually act to preventunthreadmg of the shuttle.

In brief, the invention proposes a tubular form of unthreading means which is inserted in position from the bottom of the shuttle and which may be sustained solely by frictional contact with the wood of the shuttle.

In the drawings- Figure 1 is a top plan view of the invention applied in position on a shuttle, the latter shown in fragment.

Fig. 2 is a section taken transversely through the shuttle just to the rear of the tube-like device.

Fig. 3 is a central longitudinal sectional view the tubular device being shown in side elevation, and

Fig. 4 is a top plan view of the device detached from the shuttle.

In proceeding in accordance with the present invention, a tube-like member 1 is provided which is cutaway at its back and upper end to form a curved wing 2, an oval hole 3 being provided in the front and an inclined cut 4 being formed leading from the front into the hole 3. The wing 2 is, as depicted in Figs. 2 and 4:, thinned on its outer face at 5, and has its upper edge rounded as shown at 6 so as to enable the thread to easily ride down on the wing when moving to threading position.

A hole 7 is formed in the shuttle body from the bottom thereof, and of such size so that the tubular member 1 must be driven into the hole and will consequently be held by frictional contact with the walls defining the hole and at right angles to the line of travel of the thread. Prior to the tubular Specification of Letters Patent.

Patented May 18, 1920.

Serial No. 262,740.

member being driven into the hole, the shuttle is formed with a throat 8 by cutting the wood downwardly to a point to form an entrance leading into the hole 7, as shown in Fig. 2. The throat 8, is as shown in Fig. 1, cut to extend across the hole 7. It will be obvious that due to the thinning or cutting away of the outer side face of the wing 2, as indicated at 5, that space or clearance will thus be formed between the cutaway part 5, and the adjacent wall defining the hole 7 so as to enable the passage of the thread through said space. i

In operation, the thread T is placed in the throat 8 and in the threading slot S the latter leading to the delivery eye to the rear of the slot as usual, and is then moved downwardly, riding on the edge 6 and through or in the space or clearance existing by virtue of the cutaway or thinning 5 of the wing 2, and will then pass beneath the free end or finger 9 of the wing and into the oval hole 3, whereupon the thread will be supported by the wall 10 formed by cutting away the rear wall of the tubular member. This wall 1.0 is located above the free end 9 of the wing 2, consequently accidental unthreading is guarded against, since to un- I claim as new and desire to secure by Letters Patent is- 1. In a shuttle, a shuttle body having a hole bored through its bottom and terminating below its top with a throat cut across the hole and leading into the top of the hole, a tubular member driven into the hole and having the back at the upper portion thereof cutaway and having its front formed with an oval hole and a diagonal cut leading downwardly into the hole to form a wing with a finger at the free end of the wing, the outer side face of the wing being cutaway to form space or clearance between same and the adjacent wall of the shuttle hole, said cutaway portion at the rear of the tubular member providing a thread engaging wall located above the finger.

2. In a shuttle, a shuttle body having a hole bored through its bottom and terminating below its top with a throat cut across the hole and leading into the top of the hole, and a tubular member driven into the hole and having a thread engaging wall between its ends and on one side thereof and guard means extending below said wall and located at the opposite side wall of the member.

3. In a shuttle, a tubular thread receiving member having a thread engaging wall with an eye located to the rear of the wall, and a finger guarding the eye and extending below the wall.

2. 1n a shuttle, a tubular thread receiving member having a thread engaging wall an eye and a wing which latter terminates in a finger extending below the wall, said wing having its outer face cutaway to form space with the adjacent portion of the shuttle to enable the thread to be passed down through said space to pass below the finger and enter the eye.

5. In a shuttle, a tubular thread receiving member having an opening in one side and having its opposite side formed with a cutaway part providing a wall extending transversely of the member to engage and support the thread above the bottom of the opening, said member having a slot leading into the bottom of the opening and into the cutaway part.

6. In a shuttle, a tubular thread receiving member having an opening in one side and having its opposite side formed with a cutaway part providing a thread engaging and supporting wall extending transversely of the member, said member having a diagonal slot leading into the opening at a point below the wall and adjacent the longitudinal center of the latter and also leading upwardly and into the cutaway part. 1

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN G. SHAMBOW.

Witnesses:

ADA E. HAGERTY, J. S. MILLER. 

